April 07, 1888

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Features

Trees and Flowers in the Central Park

Position of the Planets for April - 1888

Hawley's Improved Railway Tie

An Improved Draught Equalizer

An Improved Stacker

A Safety Attachment for Anchors

An Improved Lawn Mower

An Improved Step Ladder

An Improved Door Closer

An Improved Sleeve Stay

An Improved Nut Lock

An Improved Trap

An Improved Pocket Weighing Scale

The Reed & Carnrick Food Laboratory

Some Experiments with an Electro-Magnet

By Geo. M Hopkins

Spontaneous Combustion

An Australian Chlamydosaurus

A Device for Operating Throttle Valves

An Automatic Grain Weigher

An Improved Pruning Implement

Engineering Inventions - April 7, 1888

Special - April 7, 1888

A Cruel Old Monster

Agricultural Inventions - April 7, 1888

Miscellaneous Inventions - April 7, 1888

To Inventors - April 7, 1888

Departments

Letters

Correspondence - April 7, 1888

Departments

Business and Personal - April 7, 1888

Index of Inventions - April 7, 1888

Notes and Queries - April 7, 1888

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Digital Issue ?Read or download this issue’s articles online. *A printed copy of this issue is not included. $7.99

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